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Merge branch 'master' into for-next

wifi-calibration
Jiri Kosina 2010-04-23 02:08:44 +02:00
commit 6c9468e9eb
5526 changed files with 96639 additions and 43583 deletions

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@ -160,7 +160,7 @@ Description:
match the driver to the device. For example:
# echo "046d c315" > /sys/bus/usb/drivers/foo/remove_id
What: /sys/bus/usb/device/.../avoid_reset
What: /sys/bus/usb/device/.../avoid_reset_quirk
Date: December 2009
Contact: Oliver Neukum <oliver@neukum.org>
Description:

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@ -16,6 +16,15 @@
</address>
</affiliation>
</author>
<author>
<firstname>William</firstname>
<surname>Cohen</surname>
<affiliation>
<address>
<email>wcohen@redhat.com</email>
</address>
</affiliation>
</author>
</authorgroup>
<legalnotice>
@ -91,4 +100,8 @@
!Iinclude/trace/events/signal.h
</chapter>
<chapter id="block">
<title>Block IO</title>
!Iinclude/trace/events/block.h
</chapter>
</book>

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@ -34,7 +34,7 @@ NMI handler.
cpu = smp_processor_id();
++nmi_count(cpu);
if (!rcu_dereference(nmi_callback)(regs, cpu))
if (!rcu_dereference_sched(nmi_callback)(regs, cpu))
default_do_nmi(regs);
nmi_exit();
@ -47,12 +47,13 @@ function pointer. If this handler returns zero, do_nmi() invokes the
default_do_nmi() function to handle a machine-specific NMI. Finally,
preemption is restored.
Strictly speaking, rcu_dereference() is not needed, since this code runs
only on i386, which does not need rcu_dereference() anyway. However,
it is a good documentation aid, particularly for anyone attempting to
do something similar on Alpha.
In theory, rcu_dereference_sched() is not needed, since this code runs
only on i386, which in theory does not need rcu_dereference_sched()
anyway. However, in practice it is a good documentation aid, particularly
for anyone attempting to do something similar on Alpha or on systems
with aggressive optimizing compilers.
Quick Quiz: Why might the rcu_dereference() be necessary on Alpha,
Quick Quiz: Why might the rcu_dereference_sched() be necessary on Alpha,
given that the code referenced by the pointer is read-only?
@ -99,17 +100,21 @@ invoke irq_enter() and irq_exit() on NMI entry and exit, respectively.
Answer to Quick Quiz
Why might the rcu_dereference() be necessary on Alpha, given
Why might the rcu_dereference_sched() be necessary on Alpha, given
that the code referenced by the pointer is read-only?
Answer: The caller to set_nmi_callback() might well have
initialized some data that is to be used by the
new NMI handler. In this case, the rcu_dereference()
would be needed, because otherwise a CPU that received
an NMI just after the new handler was set might see
the pointer to the new NMI handler, but the old
pre-initialized version of the handler's data.
initialized some data that is to be used by the new NMI
handler. In this case, the rcu_dereference_sched() would
be needed, because otherwise a CPU that received an NMI
just after the new handler was set might see the pointer
to the new NMI handler, but the old pre-initialized
version of the handler's data.
More important, the rcu_dereference() makes it clear
to someone reading the code that the pointer is being
protected by RCU.
This same sad story can happen on other CPUs when using
a compiler with aggressive pointer-value speculation
optimizations.
More important, the rcu_dereference_sched() makes it
clear to someone reading the code that the pointer is
being protected by RCU-sched.

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@ -260,7 +260,8 @@ over a rather long period of time, but improvements are always welcome!
The reason that it is permissible to use RCU list-traversal
primitives when the update-side lock is held is that doing so
can be quite helpful in reducing code bloat when common code is
shared between readers and updaters.
shared between readers and updaters. Additional primitives
are provided for this case, as discussed in lockdep.txt.
10. Conversely, if you are in an RCU read-side critical section,
and you don't hold the appropriate update-side lock, you -must-
@ -344,8 +345,8 @@ over a rather long period of time, but improvements are always welcome!
requiring SRCU's read-side deadlock immunity or low read-side
realtime latency.
Note that, rcu_assign_pointer() and rcu_dereference() relate to
SRCU just as they do to other forms of RCU.
Note that, rcu_assign_pointer() relates to SRCU just as they do
to other forms of RCU.
15. The whole point of call_rcu(), synchronize_rcu(), and friends
is to wait until all pre-existing readers have finished before

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@ -32,9 +32,20 @@ checking of rcu_dereference() primitives:
srcu_dereference(p, sp):
Check for SRCU read-side critical section.
rcu_dereference_check(p, c):
Use explicit check expression "c".
Use explicit check expression "c". This is useful in
code that is invoked by both readers and updaters.
rcu_dereference_raw(p)
Don't check. (Use sparingly, if at all.)
rcu_dereference_protected(p, c):
Use explicit check expression "c", and omit all barriers
and compiler constraints. This is useful when the data
structure cannot change, for example, in code that is
invoked only by updaters.
rcu_access_pointer(p):
Return the value of the pointer and omit all barriers,
but retain the compiler constraints that prevent duplicating
or coalescsing. This is useful when when testing the
value of the pointer itself, for example, against NULL.
The rcu_dereference_check() check expression can be any boolean
expression, but would normally include one of the rcu_read_lock_held()
@ -59,7 +70,20 @@ In case (1), the pointer is picked up in an RCU-safe manner for vanilla
RCU read-side critical sections, in case (2) the ->file_lock prevents
any change from taking place, and finally, in case (3) the current task
is the only task accessing the file_struct, again preventing any change
from taking place.
from taking place. If the above statement was invoked only from updater
code, it could instead be written as follows:
file = rcu_dereference_protected(fdt->fd[fd],
lockdep_is_held(&files->file_lock) ||
atomic_read(&files->count) == 1);
This would verify cases #2 and #3 above, and furthermore lockdep would
complain if this was used in an RCU read-side critical section unless one
of these two cases held. Because rcu_dereference_protected() omits all
barriers and compiler constraints, it generates better code than do the
other flavors of rcu_dereference(). On the other hand, it is illegal
to use rcu_dereference_protected() if either the RCU-protected pointer
or the RCU-protected data that it points to can change concurrently.
There are currently only "universal" versions of the rcu_assign_pointer()
and RCU list-/tree-traversal primitives, which do not (yet) check for

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@ -840,6 +840,12 @@ SRCU: Initialization/cleanup
init_srcu_struct
cleanup_srcu_struct
All: lockdep-checked RCU-protected pointer access
rcu_dereference_check
rcu_dereference_protected
rcu_access_pointer
See the comment headers in the source code (or the docbook generated
from them) for more information.

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@ -1162,8 +1162,8 @@ where a driver received a request ala this before:
As mentioned, there is no virtual mapping of a bio. For DMA, this is
not a problem as the driver probably never will need a virtual mapping.
Instead it needs a bus mapping (pci_map_page for a single segment or
use blk_rq_map_sg for scatter gather) to be able to ship it to the driver. For
Instead it needs a bus mapping (dma_map_page for a single segment or
use dma_map_sg for scatter gather) to be able to ship it to the driver. For
PIO drivers (or drivers that need to revert to PIO transfer once in a
while (IDE for example)), where the CPU is doing the actual data
transfer a virtual mapping is needed. If the driver supports highmem I/O,

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@ -0,0 +1,234 @@
================
CIRCULAR BUFFERS
================
By: David Howells <dhowells@redhat.com>
Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Linux provides a number of features that can be used to implement circular
buffering. There are two sets of such features:
(1) Convenience functions for determining information about power-of-2 sized
buffers.
(2) Memory barriers for when the producer and the consumer of objects in the
buffer don't want to share a lock.
To use these facilities, as discussed below, there needs to be just one
producer and just one consumer. It is possible to handle multiple producers by
serialising them, and to handle multiple consumers by serialising them.
Contents:
(*) What is a circular buffer?
(*) Measuring power-of-2 buffers.
(*) Using memory barriers with circular buffers.
- The producer.
- The consumer.
==========================
WHAT IS A CIRCULAR BUFFER?
==========================
First of all, what is a circular buffer? A circular buffer is a buffer of
fixed, finite size into which there are two indices:
(1) A 'head' index - the point at which the producer inserts items into the
buffer.
(2) A 'tail' index - the point at which the consumer finds the next item in
the buffer.
Typically when the tail pointer is equal to the head pointer, the buffer is
empty; and the buffer is full when the head pointer is one less than the tail
pointer.
The head index is incremented when items are added, and the tail index when
items are removed. The tail index should never jump the head index, and both
indices should be wrapped to 0 when they reach the end of the buffer, thus
allowing an infinite amount of data to flow through the buffer.
Typically, items will all be of the same unit size, but this isn't strictly
required to use the techniques below. The indices can be increased by more
than 1 if multiple items or variable-sized items are to be included in the
buffer, provided that neither index overtakes the other. The implementer must
be careful, however, as a region more than one unit in size may wrap the end of
the buffer and be broken into two segments.
============================
MEASURING POWER-OF-2 BUFFERS
============================
Calculation of the occupancy or the remaining capacity of an arbitrarily sized
circular buffer would normally be a slow operation, requiring the use of a
modulus (divide) instruction. However, if the buffer is of a power-of-2 size,
then a much quicker bitwise-AND instruction can be used instead.
Linux provides a set of macros for handling power-of-2 circular buffers. These
can be made use of by:
#include <linux/circ_buf.h>
The macros are:
(*) Measure the remaining capacity of a buffer:
CIRC_SPACE(head_index, tail_index, buffer_size);
This returns the amount of space left in the buffer[1] into which items
can be inserted.
(*) Measure the maximum consecutive immediate space in a buffer:
CIRC_SPACE_TO_END(head_index, tail_index, buffer_size);
This returns the amount of consecutive space left in the buffer[1] into
which items can be immediately inserted without having to wrap back to the
beginning of the buffer.
(*) Measure the occupancy of a buffer:
CIRC_CNT(head_index, tail_index, buffer_size);
This returns the number of items currently occupying a buffer[2].
(*) Measure the non-wrapping occupancy of a buffer:
CIRC_CNT_TO_END(head_index, tail_index, buffer_size);
This returns the number of consecutive items[2] that can be extracted from
the buffer without having to wrap back to the beginning of the buffer.
Each of these macros will nominally return a value between 0 and buffer_size-1,
however:
[1] CIRC_SPACE*() are intended to be used in the producer. To the producer
they will return a lower bound as the producer controls the head index,
but the consumer may still be depleting the buffer on another CPU and
moving the tail index.
To the consumer it will show an upper bound as the producer may be busy
depleting the space.
[2] CIRC_CNT*() are intended to be used in the consumer. To the consumer they
will return a lower bound as the consumer controls the tail index, but the
producer may still be filling the buffer on another CPU and moving the
head index.
To the producer it will show an upper bound as the consumer may be busy
emptying the buffer.
[3] To a third party, the order in which the writes to the indices by the
producer and consumer become visible cannot be guaranteed as they are
independent and may be made on different CPUs - so the result in such a
situation will merely be a guess, and may even be negative.
===========================================
USING MEMORY BARRIERS WITH CIRCULAR BUFFERS
===========================================
By using memory barriers in conjunction with circular buffers, you can avoid
the need to:
(1) use a single lock to govern access to both ends of the buffer, thus
allowing the buffer to be filled and emptied at the same time; and
(2) use atomic counter operations.
There are two sides to this: the producer that fills the buffer, and the
consumer that empties it. Only one thing should be filling a buffer at any one
time, and only one thing should be emptying a buffer at any one time, but the
two sides can operate simultaneously.
THE PRODUCER
------------
The producer will look something like this:
spin_lock(&producer_lock);
unsigned long head = buffer->head;
unsigned long tail = ACCESS_ONCE(buffer->tail);
if (CIRC_SPACE(head, tail, buffer->size) >= 1) {
/* insert one item into the buffer */
struct item *item = buffer[head];
produce_item(item);
smp_wmb(); /* commit the item before incrementing the head */
buffer->head = (head + 1) & (buffer->size - 1);
/* wake_up() will make sure that the head is committed before
* waking anyone up */
wake_up(consumer);
}
spin_unlock(&producer_lock);
This will instruct the CPU that the contents of the new item must be written
before the head index makes it available to the consumer and then instructs the
CPU that the revised head index must be written before the consumer is woken.
Note that wake_up() doesn't have to be the exact mechanism used, but whatever
is used must guarantee a (write) memory barrier between the update of the head
index and the change of state of the consumer, if a change of state occurs.
THE CONSUMER
------------
The consumer will look something like this:
spin_lock(&consumer_lock);
unsigned long head = ACCESS_ONCE(buffer->head);
unsigned long tail = buffer->tail;
if (CIRC_CNT(head, tail, buffer->size) >= 1) {
/* read index before reading contents at that index */
smp_read_barrier_depends();
/* extract one item from the buffer */
struct item *item = buffer[tail];
consume_item(item);
smp_mb(); /* finish reading descriptor before incrementing tail */
buffer->tail = (tail + 1) & (buffer->size - 1);
}
spin_unlock(&consumer_lock);
This will instruct the CPU to make sure the index is up to date before reading
the new item, and then it shall make sure the CPU has finished reading the item
before it writes the new tail pointer, which will erase the item.
Note the use of ACCESS_ONCE() in both algorithms to read the opposition index.
This prevents the compiler from discarding and reloading its cached value -
which some compilers will do across smp_read_barrier_depends(). This isn't
strictly needed if you can be sure that the opposition index will _only_ be
used the once.
===============
FURTHER READING
===============
See also Documentation/memory-barriers.txt for a description of Linux's memory
barrier facilities.

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@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/timer.h>
#include <linux/connector.h>

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@ -1,9 +1,9 @@
What is imacfb?
What is efifb?
===============
This is a generic EFI platform driver for Intel based Apple computers.
Imacfb is only for EFI booted Intel Macs.
efifb is only for EFI booted Intel Macs.
Supported Hardware
==================
@ -16,16 +16,16 @@ MacMini
How to use it?
==============
Imacfb does not have any kind of autodetection of your machine.
efifb does not have any kind of autodetection of your machine.
You have to add the following kernel parameters in your elilo.conf:
Macbook :
video=imacfb:macbook
video=efifb:macbook
MacMini :
video=imacfb:mini
video=efifb:mini
Macbook Pro 15", iMac 17" :
video=imacfb:i17
video=efifb:i17
Macbook Pro 17", iMac 20" :
video=imacfb:i20
video=efifb:i20
--
Edgar Hucek <gimli@dark-green.com>

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@ -582,3 +582,10 @@ Why: The paravirt mmu host support is slower than non-paravirt mmu, both
Who: Avi Kivity <avi@redhat.com>
----------------------------
What: "acpi=ht" boot option
When: 2.6.35
Why: Useful in 2003, implementation is a hack.
Generally invoked by accident today.
Seen as doing more harm than good.
Who: Len Brown <len.brown@intel.com>

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@ -16,6 +16,8 @@ befs.txt
- information about the BeOS filesystem for Linux.
bfs.txt
- info for the SCO UnixWare Boot Filesystem (BFS).
ceph.txt
- info for the Ceph Distributed File System
cifs.txt
- description of the CIFS filesystem.
coda.txt

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@ -37,6 +37,15 @@ For Plan 9 From User Space applications (http://swtch.com/plan9)
mount -t 9p `namespace`/acme /mnt/9 -o trans=unix,uname=$USER
For server running on QEMU host with virtio transport:
mount -t 9p -o trans=virtio <mount_tag> /mnt/9
where mount_tag is the tag associated by the server to each of the exported
mount points. Each 9P export is seen by the client as a virtio device with an
associated "mount_tag" property. Available mount tags can be
seen by reading /sys/bus/virtio/drivers/9pnet_virtio/virtio<n>/mount_tag files.
OPTIONS
=======
@ -47,7 +56,7 @@ OPTIONS
fd - used passed file descriptors for connection
(see rfdno and wfdno)
virtio - connect to the next virtio channel available
(from lguest or KVM with trans_virtio module)
(from QEMU with trans_virtio module)
rdma - connect to a specified RDMA channel
uname=name user name to attempt mount as on the remote server. The
@ -85,7 +94,12 @@ OPTIONS
port=n port to connect to on the remote server
noextend force legacy mode (no 9p2000.u semantics)
noextend force legacy mode (no 9p2000.u or 9p2000.L semantics)
version=name Select 9P protocol version. Valid options are:
9p2000 - Legacy mode (same as noextend)
9p2000.u - Use 9P2000.u protocol
9p2000.L - Use 9P2000.L protocol
dfltuid attempt to mount as a particular uid

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@ -0,0 +1,140 @@
Ceph Distributed File System
============================
Ceph is a distributed network file system designed to provide good
performance, reliability, and scalability.
Basic features include:
* POSIX semantics
* Seamless scaling from 1 to many thousands of nodes
* High availability and reliability. No single point of failure.
* N-way replication of data across storage nodes
* Fast recovery from node failures
* Automatic rebalancing of data on node addition/removal
* Easy deployment: most FS components are userspace daemons
Also,
* Flexible snapshots (on any directory)
* Recursive accounting (nested files, directories, bytes)
In contrast to cluster filesystems like GFS, OCFS2, and GPFS that rely
on symmetric access by all clients to shared block devices, Ceph
separates data and metadata management into independent server
clusters, similar to Lustre. Unlike Lustre, however, metadata and
storage nodes run entirely as user space daemons. Storage nodes
utilize btrfs to store data objects, leveraging its advanced features
(checksumming, metadata replication, etc.). File data is striped
across storage nodes in large chunks to distribute workload and
facilitate high throughputs. When storage nodes fail, data is
re-replicated in a distributed fashion by the storage nodes themselves
(with some minimal coordination from a cluster monitor), making the
system extremely efficient and scalable.
Metadata servers effectively form a large, consistent, distributed
in-memory cache above the file namespace that is extremely scalable,
dynamically redistributes metadata in response to workload changes,
and can tolerate arbitrary (well, non-Byzantine) node failures. The
metadata server takes a somewhat unconventional approach to metadata
storage to significantly improve performance for common workloads. In
particular, inodes with only a single link are embedded in
directories, allowing entire directories of dentries and inodes to be
loaded into its cache with a single I/O operation. The contents of
extremely large directories can be fragmented and managed by
independent metadata servers, allowing scalable concurrent access.
The system offers automatic data rebalancing/migration when scaling
from a small cluster of just a few nodes to many hundreds, without
requiring an administrator carve the data set into static volumes or
go through the tedious process of migrating data between servers.
When the file system approaches full, new nodes can be easily added
and things will "just work."
Ceph includes flexible snapshot mechanism that allows a user to create
a snapshot on any subdirectory (and its nested contents) in the
system. Snapshot creation and deletion are as simple as 'mkdir
.snap/foo' and 'rmdir .snap/foo'.
Ceph also provides some recursive accounting on directories for nested
files and bytes. That is, a 'getfattr -d foo' on any directory in the
system will reveal the total number of nested regular files and
subdirectories, and a summation of all nested file sizes. This makes
the identification of large disk space consumers relatively quick, as
no 'du' or similar recursive scan of the file system is required.
Mount Syntax
============
The basic mount syntax is:
# mount -t ceph monip[:port][,monip2[:port]...]:/[subdir] mnt
You only need to specify a single monitor, as the client will get the
full list when it connects. (However, if the monitor you specify
happens to be down, the mount won't succeed.) The port can be left
off if the monitor is using the default. So if the monitor is at
1.2.3.4,
# mount -t ceph 1.2.3.4:/ /mnt/ceph
is sufficient. If /sbin/mount.ceph is installed, a hostname can be
used instead of an IP address.
Mount Options
=============
ip=A.B.C.D[:N]
Specify the IP and/or port the client should bind to locally.
There is normally not much reason to do this. If the IP is not
specified, the client's IP address is determined by looking at the
address it's connection to the monitor originates from.
wsize=X
Specify the maximum write size in bytes. By default there is no
maximum. Ceph will normally size writes based on the file stripe
size.
rsize=X
Specify the maximum readahead.
mount_timeout=X
Specify the timeout value for mount (in seconds), in the case
of a non-responsive Ceph file system. The default is 30
seconds.
rbytes
When stat() is called on a directory, set st_size to 'rbytes',
the summation of file sizes over all files nested beneath that
directory. This is the default.
norbytes
When stat() is called on a directory, set st_size to the
number of entries in that directory.
nocrc
Disable CRC32C calculation for data writes. If set, the storage node
must rely on TCP's error correction to detect data corruption
in the data payload.
noasyncreaddir
Disable client's use its local cache to satisfy readdir
requests. (This does not change correctness; the client uses
cached metadata only when a lease or capability ensures it is
valid.)
More Information
================
For more information on Ceph, see the home page at
http://ceph.newdream.net/
The Linux kernel client source tree is available at
git://ceph.newdream.net/git/ceph-client.git
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
and the source for the full system is at
git://ceph.newdream.net/git/ceph.git

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@ -82,11 +82,13 @@ tmpfs has a mount option to set the NUMA memory allocation policy for
all files in that instance (if CONFIG_NUMA is enabled) - which can be
adjusted on the fly via 'mount -o remount ...'
mpol=default prefers to allocate memory from the local node
mpol=default use the process allocation policy
(see set_mempolicy(2))
mpol=prefer:Node prefers to allocate memory from the given Node
mpol=bind:NodeList allocates memory only from nodes in NodeList
mpol=interleave prefers to allocate from each node in turn
mpol=interleave:NodeList allocates from each node of NodeList in turn
mpol=local prefers to allocate memory from the local node
NodeList format is a comma-separated list of decimal numbers and ranges,
a range being two hyphen-separated decimal numbers, the smallest and
@ -134,3 +136,5 @@ Author:
Christoph Rohland <cr@sap.com>, 1.12.01
Updated:
Hugh Dickins, 4 June 2007
Updated:
KOSAKI Motohiro, 16 Mar 2010

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@ -68,6 +68,22 @@ like:
SYN_MT_REPORT
SYN_REPORT
Here is the sequence after lifting one of the fingers:
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
SYN_REPORT
And here is the sequence after lifting the remaining finger:
SYN_MT_REPORT
SYN_REPORT
If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the
ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the
last SYN_REPORT will be dropped by the input core, resulting in no
zero-finger event reaching userland.
Event Semantics
---------------
@ -217,11 +233,6 @@ where examples can be found.
difference between the contact position and the approaching tool position
could be used to derive tilt.
[2] The list can of course be extended.
[3] The multi-touch X driver is currently in the prototyping stage. At the
time of writing (April 2009), the MT protocol is not yet merged, and the
prototype implements finger matching, basic mouse support and two-finger
scrolling. The project aims at improving the quality of current multi-touch
functionality available in the Synaptics X driver, and in addition
implement more advanced gestures.
[3] Multitouch X driver project: http://bitmath.org/code/multitouch/.
[4] See the section on event computation.
[5] See the section on finger tracking.

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@ -291,6 +291,7 @@ Code Seq#(hex) Include File Comments
0x92 00-0F drivers/usb/mon/mon_bin.c
0x93 60-7F linux/auto_fs.h
0x94 all fs/btrfs/ioctl.h
0x97 00-7F fs/ceph/ioctl.h Ceph file system
0x99 00-0F 537-Addinboard driver
<mailto:buk@buks.ipn.de>
0xA0 all linux/sdp/sdp.h Industrial Device Project

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@ -200,10 +200,6 @@ and is between 256 and 4096 characters. It is defined in the file
acpi_display_output=video
See above.
acpi_early_pdc_eval [HW,ACPI] Evaluate processor _PDC methods
early. Needed on some platforms to properly
initialize the EC.
acpi_irq_balance [HW,ACPI]
ACPI will balance active IRQs
default in APIC mode
@ -324,11 +320,6 @@ and is between 256 and 4096 characters. It is defined in the file
amd_iommu= [HW,X86-84]
Pass parameters to the AMD IOMMU driver in the system.
Possible values are:
isolate - enable device isolation (each device, as far
as possible, will get its own protection
domain) [default]
share - put every device behind one IOMMU into the
same protection domain
fullflush - enable flushing of IO/TLB entries when
they are unmapped. Otherwise they are
flushed before they will be reused, which

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@ -59,37 +59,56 @@ nice to have in other objects. The C language does not allow for the
direct expression of inheritance, so other techniques - such as structure
embedding - must be used.
So, for example, the UIO code has a structure that defines the memory
region associated with a uio device:
(As an aside, for those familiar with the kernel linked list implementation,
this is analogous as to how "list_head" structs are rarely useful on
their own, but are invariably found embedded in the larger objects of
interest.)
struct uio_mem {
So, for example, the UIO code in drivers/uio/uio.c has a structure that
defines the memory region associated with a uio device:
struct uio_map {
struct kobject kobj;
unsigned long addr;
unsigned long size;
int memtype;
void __iomem *internal_addr;
};
struct uio_mem *mem;
};
If you have a struct uio_mem structure, finding its embedded kobject is
If you have a struct uio_map structure, finding its embedded kobject is
just a matter of using the kobj member. Code that works with kobjects will
often have the opposite problem, however: given a struct kobject pointer,
what is the pointer to the containing structure? You must avoid tricks
(such as assuming that the kobject is at the beginning of the structure)
and, instead, use the container_of() macro, found in <linux/kernel.h>:
container_of(pointer, type, member)
container_of(pointer, type, member)
where pointer is the pointer to the embedded kobject, type is the type of
the containing structure, and member is the name of the structure field to
which pointer points. The return value from container_of() is a pointer to
the given type. So, for example, a pointer "kp" to a struct kobject
embedded within a struct uio_mem could be converted to a pointer to the
containing uio_mem structure with:
where:
struct uio_mem *u_mem = container_of(kp, struct uio_mem, kobj);
* "pointer" is the pointer to the embedded kobject,
* "type" is the type of the containing structure, and
* "member" is the name of the structure field to which "pointer" points.
Programmers often define a simple macro for "back-casting" kobject pointers
to the containing type.
The return value from container_of() is a pointer to the corresponding
container type. So, for example, a pointer "kp" to a struct kobject
embedded *within* a struct uio_map could be converted to a pointer to the
*containing* uio_map structure with:
struct uio_map *u_map = container_of(kp, struct uio_map, kobj);
For convenience, programmers often define a simple macro for "back-casting"
kobject pointers to the containing type. Exactly this happens in the
earlier drivers/uio/uio.c, as you can see here:
struct uio_map {
struct kobject kobj;
struct uio_mem *mem;
};
#define to_map(map) container_of(map, struct uio_map, kobj)
where the macro argument "map" is a pointer to the struct kobject in
question. That macro is subsequently invoked with:
struct uio_map *map = to_map(kobj);
Initialization of kobjects
@ -387,4 +406,5 @@ called, and the objects in the former circle release each other.
Example code to copy from
For a more complete example of using ksets and kobjects properly, see the
sample/kobject/kset-example.c code.
example programs samples/kobject/{kobject-example.c,kset-example.c},
which will be built as loadable modules if you select CONFIG_SAMPLE_KOBJECT.

View File

@ -3,6 +3,7 @@
============================
By: David Howells <dhowells@redhat.com>
Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Contents:
@ -60,6 +61,10 @@ Contents:
- And then there's the Alpha.
(*) Example uses.
- Circular buffers.
(*) References.
@ -2226,6 +2231,21 @@ The Alpha defines the Linux kernel's memory barrier model.
See the subsection on "Cache Coherency" above.
============
EXAMPLE USES
============
CIRCULAR BUFFERS
----------------
Memory barriers can be used to implement circular buffering without the need
of a lock to serialise the producer with the consumer. See:
Documentation/circular-buffers.txt
for details.
==========
REFERENCES
==========

View File

@ -6,3 +6,5 @@ hostprogs-y := ifenslave
# Tell kbuild to always build the programs
always := $(hostprogs-y)
obj-m := timestamping/

View File

@ -0,0 +1,143 @@
STMicroelectronics 10/100/1000 Synopsys Ethernet driver
Copyright (C) 2007-2010 STMicroelectronics Ltd
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
This is the driver for the MAC 10/100/1000 on-chip Ethernet controllers
(Synopsys IP blocks); it has been fully tested on STLinux platforms.
Currently this network device driver is for all STM embedded MAC/GMAC
(7xxx SoCs).
DWC Ether MAC 10/100/1000 Universal version 3.41a and DWC Ether MAC 10/100
Universal version 4.0 have been used for developing the first code
implementation.
Please, for more information also visit: www.stlinux.com
1) Kernel Configuration
The kernel configuration option is STMMAC_ETH:
Device Drivers ---> Network device support ---> Ethernet (1000 Mbit) --->
STMicroelectronics 10/100/1000 Ethernet driver (STMMAC_ETH)
2) Driver parameters list:
debug: message level (0: no output, 16: all);
phyaddr: to manually provide the physical address to the PHY device;
dma_rxsize: DMA rx ring size;
dma_txsize: DMA tx ring size;
buf_sz: DMA buffer size;
tc: control the HW FIFO threshold;
tx_coe: Enable/Disable Tx Checksum Offload engine;
watchdog: transmit timeout (in milliseconds);
flow_ctrl: Flow control ability [on/off];
pause: Flow Control Pause Time;
tmrate: timer period (only if timer optimisation is configured).
3) Command line options
Driver parameters can be also passed in command line by using:
stmmaceth=dma_rxsize:128,dma_txsize:512
4) Driver information and notes
4.1) Transmit process
The xmit method is invoked when the kernel needs to transmit a packet; it sets
the descriptors in the ring and informs the DMA engine that there is a packet
ready to be transmitted.
Once the controller has finished transmitting the packet, an interrupt is
triggered; So the driver will be able to release the socket buffers.
By default, the driver sets the NETIF_F_SG bit in the features field of the
net_device structure enabling the scatter/gather feature.
4.2) Receive process
When one or more packets are received, an interrupt happens. The interrupts
are not queued so the driver has to scan all the descriptors in the ring during
the receive process.
This is based on NAPI so the interrupt handler signals only if there is work to be
done, and it exits.
Then the poll method will be scheduled at some future point.
The incoming packets are stored, by the DMA, in a list of pre-allocated socket
buffers in order to avoid the memcpy (Zero-copy).
4.3) Timer-Driver Interrupt
Instead of having the device that asynchronously notifies the frame receptions, the
driver configures a timer to generate an interrupt at regular intervals.
Based on the granularity of the timer, the frames that are received by the device
will experience different levels of latency. Some NICs have dedicated timer
device to perform this task. STMMAC can use either the RTC device or the TMU
channel 2 on STLinux platforms.
The timers frequency can be passed to the driver as parameter; when change it,
take care of both hardware capability and network stability/performance impact.
Several performance tests on STM platforms showed this optimisation allows to spare
the CPU while having the maximum throughput.
4.4) WOL
Wake up on Lan feature through Magic Frame is only supported for the GMAC
core.
4.5) DMA descriptors
Driver handles both normal and enhanced descriptors. The latter has been only
tested on DWC Ether MAC 10/100/1000 Universal version 3.41a.
4.6) Ethtool support
Ethtool is supported. Driver statistics and internal errors can be taken using:
ethtool -S ethX command. It is possible to dump registers etc.
4.7) Jumbo and Segmentation Offloading
Jumbo frames are supported and tested for the GMAC.
The GSO has been also added but it's performed in software.
LRO is not supported.
4.8) Physical
The driver is compatible with PAL to work with PHY and GPHY devices.
4.9) Platform information
Several information came from the platform; please refer to the
driver's Header file in include/linux directory.
struct plat_stmmacenet_data {
int bus_id;
int pbl;
int has_gmac;
void (*fix_mac_speed)(void *priv, unsigned int speed);
void (*bus_setup)(unsigned long ioaddr);
#ifdef CONFIG_STM_DRIVERS
struct stm_pad_config *pad_config;
#endif
void *bsp_priv;
};
Where:
- pbl (Programmable Burst Length) is maximum number of
beats to be transferred in one DMA transaction.
GMAC also enables the 4xPBL by default.
- fix_mac_speed and bus_setup are used to configure internal target
registers (on STM platforms);
- has_gmac: GMAC core is on board (get it at run-time in the next step);
- bus_id: bus identifier.
struct plat_stmmacphy_data {
int bus_id;
int phy_addr;
unsigned int phy_mask;
int interface;
int (*phy_reset)(void *priv);
void *priv;
};
Where:
- bus_id: bus identifier;
- phy_addr: physical address used for the attached phy device;
set it to -1 to get it at run-time;
- interface: physical MII interface mode;
- phy_reset: hook to reset HW function.
TODO:
- Continue to make the driver more generic and suitable for other Synopsys
Ethernet controllers used on other architectures (i.e. ARM).
- 10G controllers are not supported.
- MAC uses Normal descriptors and GMAC uses enhanced ones.
This is a limit that should be reviewed. MAC could want to
use the enhanced structure.
- Checksumming: Rx/Tx csum is done in HW in case of GMAC only.
- Review the timer optimisation code to use an embedded device that seems to be
available in new chip generations.

View File

@ -41,11 +41,12 @@ SOF_TIMESTAMPING_SOFTWARE: return system time stamp generated in
SOF_TIMESTAMPING_TX/RX determine how time stamps are generated.
SOF_TIMESTAMPING_RAW/SYS determine how they are reported in the
following control message:
struct scm_timestamping {
struct timespec systime;
struct timespec hwtimetrans;
struct timespec hwtimeraw;
};
struct scm_timestamping {
struct timespec systime;
struct timespec hwtimetrans;
struct timespec hwtimeraw;
};
recvmsg() can be used to get this control message for regular incoming
packets. For send time stamps the outgoing packet is looped back to
@ -87,12 +88,13 @@ by the network device and will be empty without that support.
SIOCSHWTSTAMP:
Hardware time stamping must also be initialized for each device driver
that is expected to do hardware time stamping. The parameter is:
that is expected to do hardware time stamping. The parameter is defined in
/include/linux/net_tstamp.h as:
struct hwtstamp_config {
int flags; /* no flags defined right now, must be zero */
int tx_type; /* HWTSTAMP_TX_* */
int rx_filter; /* HWTSTAMP_FILTER_* */
int flags; /* no flags defined right now, must be zero */
int tx_type; /* HWTSTAMP_TX_* */
int rx_filter; /* HWTSTAMP_FILTER_* */
};
Desired behavior is passed into the kernel and to a specific device by
@ -139,42 +141,56 @@ enum {
/* time stamp any incoming packet */
HWTSTAMP_FILTER_ALL,
/* return value: time stamp all packets requested plus some others */
HWTSTAMP_FILTER_SOME,
/* return value: time stamp all packets requested plus some others */
HWTSTAMP_FILTER_SOME,
/* PTP v1, UDP, any kind of event packet */
HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
...
/* for the complete list of values, please check
* the include file /include/linux/net_tstamp.h
*/
};
DEVICE IMPLEMENTATION
A driver which supports hardware time stamping must support the
SIOCSHWTSTAMP ioctl. Time stamps for received packets must be stored
in the skb with skb_hwtstamp_set().
SIOCSHWTSTAMP ioctl and update the supplied struct hwtstamp_config with
the actual values as described in the section on SIOCSHWTSTAMP.
Time stamps for received packets must be stored in the skb. To get a pointer
to the shared time stamp structure of the skb call skb_hwtstamps(). Then
set the time stamps in the structure:
struct skb_shared_hwtstamps {
/* hardware time stamp transformed into duration
* since arbitrary point in time
*/
ktime_t hwtstamp;
ktime_t syststamp; /* hwtstamp transformed to system time base */
};
Time stamps for outgoing packets are to be generated as follows:
- In hard_start_xmit(), check if skb_hwtstamp_check_tx_hardware()
returns non-zero. If yes, then the driver is expected
to do hardware time stamping.
- In hard_start_xmit(), check if skb_tx(skb)->hardware is set no-zero.
If yes, then the driver is expected to do hardware time stamping.
- If this is possible for the skb and requested, then declare
that the driver is doing the time stamping by calling
skb_hwtstamp_tx_in_progress(). A driver not supporting
hardware time stamping doesn't do that. A driver must never
touch sk_buff::tstamp! It is used to store how time stamping
for an outgoing packets is to be done.
that the driver is doing the time stamping by setting the field
skb_tx(skb)->in_progress non-zero. You might want to keep a pointer
to the associated skb for the next step and not free the skb. A driver
not supporting hardware time stamping doesn't do that. A driver must
never touch sk_buff::tstamp! It is used to store software generated
time stamps by the network subsystem.
- As soon as the driver has sent the packet and/or obtained a
hardware time stamp for it, it passes the time stamp back by
calling skb_hwtstamp_tx() with the original skb, the raw
hardware time stamp and a handle to the device (necessary
to convert the hardware time stamp to system time). If obtaining
the hardware time stamp somehow fails, then the driver should
not fall back to software time stamping. The rationale is that
this would occur at a later time in the processing pipeline
than other software time stamping and therefore could lead
to unexpected deltas between time stamps.
- If the driver did not call skb_hwtstamp_tx_in_progress(), then
hardware time stamp. skb_hwtstamp_tx() clones the original skb and
adds the timestamps, therefore the original skb has to be freed now.
If obtaining the hardware time stamp somehow fails, then the driver
should not fall back to software time stamping. The rationale is that
this would occur at a later time in the processing pipeline than other
software time stamping and therefore could lead to unexpected deltas
between time stamps.
- If the driver did not call set skb_tx(skb)->in_progress, then
dev_hard_start_xmit() checks whether software time stamping
is wanted as fallback and potentially generates the time stamp.

View File

@ -1,6 +1,13 @@
CPPFLAGS = -I../../../include
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
timestamping: timestamping.c
# List of programs to build
hostprogs-y := timestamping
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
clean:
rm -f timestamping

View File

@ -41,9 +41,9 @@
#include <arpa/inet.h>
#include <net/if.h>
#include "asm/types.h"
#include "linux/net_tstamp.h"
#include "linux/errqueue.h"
#include <asm/types.h>
#include <linux/net_tstamp.h>
#include <linux/errqueue.h>
#ifndef SO_TIMESTAMPING
# define SO_TIMESTAMPING 37
@ -164,7 +164,7 @@ static void printpacket(struct msghdr *msg, int res,
gettimeofday(&now, 0);
printf("%ld.%06ld: received %s data, %d bytes from %s, %d bytes control messages\n",
printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n",
(long)now.tv_sec, (long)now.tv_usec,
(recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
res,
@ -173,7 +173,7 @@ static void printpacket(struct msghdr *msg, int res,
for (cmsg = CMSG_FIRSTHDR(msg);
cmsg;
cmsg = CMSG_NXTHDR(msg, cmsg)) {
printf(" cmsg len %d: ", cmsg->cmsg_len);
printf(" cmsg len %zu: ", cmsg->cmsg_len);
switch (cmsg->cmsg_level) {
case SOL_SOCKET:
printf("SOL_SOCKET ");

View File

@ -21,6 +21,15 @@ Required properties:
- fsl,qe-num-snums: define how many serial number(SNUM) the QE can use for the
threads.
Optional properties:
- fsl,firmware-phandle:
Usage: required only if there is no fsl,qe-firmware child node
Value type: <phandle>
Definition: Points to a firmware node (see "QE Firmware Node" below)
that contains the firmware that should be uploaded for this QE.
The compatible property for the firmware node should say,
"fsl,qe-firmware".
Recommended properties
- brg-frequency : the internal clock source frequency for baud-rate
generators in Hz.
@ -59,3 +68,48 @@ Example:
reg = <0 c000>;
};
};
* QE Firmware Node
This node defines a firmware binary that is embedded in the device tree, for
the purpose of passing the firmware from bootloader to the kernel, or from
the hypervisor to the guest.
The firmware node itself contains the firmware binary contents, a compatible
property, and any firmware-specific properties. The node should be placed
inside a QE node that needs it. Doing so eliminates the need for a
fsl,firmware-phandle property. Other QE nodes that need the same firmware
should define an fsl,firmware-phandle property that points to the firmware node
in the first QE node.
The fsl,firmware property can be specified in the DTS (possibly using incbin)
or can be inserted by the boot loader at boot time.
Required properties:
- compatible
Usage: required
Value type: <string>
Definition: A standard property. Specify a string that indicates what
kind of firmware it is. For QE, this should be "fsl,qe-firmware".
- fsl,firmware
Usage: required
Value type: <prop-encoded-array>, encoded as an array of bytes
Definition: A standard property. This property contains the firmware
binary "blob".
Example:
qe1@e0080000 {
compatible = "fsl,qe";
qe_firmware:qe-firmware {
compatible = "fsl,qe-firmware";
fsl,firmware = [0x70 0xcd 0x00 0x00 0x01 0x46 0x45 ...];
};
...
};
qe2@e0090000 {
compatible = "fsl,qe";
fsl,firmware-phandle = <&qe_firmware>;
...
};

View File

@ -119,10 +119,18 @@ the codec slots 0 and 1 no matter what the hardware reports.
Interrupt Handling
~~~~~~~~~~~~~~~~~~
In rare but some cases, the interrupt isn't properly handled as
default. You would notice this by the DMA transfer error reported by
ALSA PCM core, for example. Using MSI might help in such a case.
Pass `enable_msi=1` option for enabling MSI.
HD-audio driver uses MSI as default (if available) since 2.6.33
kernel as MSI works better on some machines, and in general, it's
better for performance. However, Nvidia controllers showed bad
regressions with MSI (especially in a combination with AMD chipset),
thus we disabled MSI for them.
There seem also still other devices that don't work with MSI. If you
see a regression wrt the sound quality (stuttering, etc) or a lock-up
in the recent kernel, try to pass `enable_msi=0` option to disable
MSI. If it works, you can add the known bad device to the blacklist
defined in hda_intel.c. In such a case, please report and give the
patch back to the upstream developer.
HD-AUDIO CODEC

View File

@ -63,9 +63,9 @@ way to perform a busy wait is:
cpu_relax();
The cpu_relax() call can lower CPU power consumption or yield to a
hyperthreaded twin processor; it also happens to serve as a memory barrier,
so, once again, volatile is unnecessary. Of course, busy-waiting is
generally an anti-social act to begin with.
hyperthreaded twin processor; it also happens to serve as a compiler
barrier, so, once again, volatile is unnecessary. Of course, busy-
waiting is generally an anti-social act to begin with.
There are still a few rare situations where volatile makes sense in the
kernel:

View File

@ -17,9 +17,6 @@ int main(void)
ret = -1;
break;
}
ret = fsync(fd);
if (ret)
break;
sleep(10);
}
close(fd);

View File

@ -31,6 +31,8 @@ static void keep_alive(void)
*/
int main(int argc, char *argv[])
{
int flags;
fd = open("/dev/watchdog", O_WRONLY);
if (fd == -1) {
@ -41,12 +43,14 @@ int main(int argc, char *argv[])
if (argc > 1) {
if (!strncasecmp(argv[1], "-d", 2)) {
ioctl(fd, WDIOC_SETOPTIONS, WDIOS_DISABLECARD);
flags = WDIOS_DISABLECARD;
ioctl(fd, WDIOC_SETOPTIONS, &flags);
fprintf(stderr, "Watchdog card disabled.\n");
fflush(stderr);
exit(0);
} else if (!strncasecmp(argv[1], "-e", 2)) {
ioctl(fd, WDIOC_SETOPTIONS, WDIOS_ENABLECARD);
flags = WDIOS_ENABLECARD;
ioctl(fd, WDIOC_SETOPTIONS, &flags);
fprintf(stderr, "Watchdog card enabled.\n");
fflush(stderr);
exit(0);

View File

@ -222,11 +222,10 @@ returned value is the temperature in degrees fahrenheit.
ioctl(fd, WDIOC_GETTEMP, &temperature);
Finally the SETOPTIONS ioctl can be used to control some aspects of
the cards operation; right now the pcwd driver is the only one
supporting this ioctl.
the cards operation.
int options = 0;
ioctl(fd, WDIOC_SETOPTIONS, options);
ioctl(fd, WDIOC_SETOPTIONS, &options);
The following options are available:

View File

@ -485,8 +485,8 @@ S: Maintained
F: drivers/input/mouse/bcm5974.c
APPLE SMC DRIVER
M: Nicolas Boichat <nicolas@boichat.ch>
L: mactel-linux-devel@lists.sourceforge.net
M: Henrik Rydberg <rydberg@euromail.se>
L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/applesmc.c
@ -797,12 +797,12 @@ M: Michael Petchkovsky <mkpetch@internode.on.net>
S: Maintained
ARM/NOMADIK ARCHITECTURE
M: Alessandro Rubini <rubini@unipv.it>
M: STEricsson <STEricsson_nomadik_linux@list.st.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-nomadik/
F: arch/arm/plat-nomadik/
M: Alessandro Rubini <rubini@unipv.it>
M: STEricsson <STEricsson_nomadik_linux@list.st.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-nomadik/
F: arch/arm/plat-nomadik/
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
M: Nelson Castillo <arhuaco@freaks-unidos.net>
@ -971,6 +971,16 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.mcuos.com
S: Maintained
ARM/U300 MACHINE SUPPORT
M: Linus Walleij <linus.walleij@stericsson.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: arch/arm/mach-u300/
F: drivers/i2c/busses/i2c-stu300.c
F: drivers/rtc/rtc-coh901331.c
F: drivers/watchdog/coh901327_wdt.c
F: drivers/dma/coh901318*
ARM/U8500 ARM ARCHITECTURE
M: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -1405,20 +1415,30 @@ F: arch/x86/include/asm/calgary.h
F: arch/x86/include/asm/tce.h
CAN NETWORK LAYER
M: Urs Thuermann <urs.thuermann@volkswagen.de>
M: Oliver Hartkopp <socketcan@hartkopp.net>
M: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
L: socketcan-core@lists.berlios.de (subscribers-only)
M: Urs Thuermann <urs.thuermann@volkswagen.de>
L: socketcan-core@lists.berlios.de
L: netdev@vger.kernel.org
W: http://developer.berlios.de/projects/socketcan/
S: Maintained
F: drivers/net/can/
F: include/linux/can/
F: net/can/
F: include/linux/can.h
F: include/linux/can/core.h
F: include/linux/can/bcm.h
F: include/linux/can/raw.h
CAN NETWORK DRIVERS
M: Wolfgang Grandegger <wg@grandegger.com>
L: socketcan-core@lists.berlios.de (subscribers-only)
L: socketcan-core@lists.berlios.de
L: netdev@vger.kernel.org
W: http://developer.berlios.de/projects/socketcan/
S: Maintained
F: drivers/net/can/
F: include/linux/can/dev.h
F: include/linux/can/error.h
F: include/linux/can/netlink.h
F: include/linux/can/platform/
CELL BROADBAND ENGINE ARCHITECTURE
M: Arnd Bergmann <arnd@arndb.de>
@ -1431,6 +1451,15 @@ F: arch/powerpc/include/asm/spu*.h
F: arch/powerpc/oprofile/*cell*
F: arch/powerpc/platforms/cell/
CEPH DISTRIBUTED FILE SYSTEM CLIENT
M: Sage Weil <sage@newdream.net>
L: ceph-devel@vger.kernel.org
W: http://ceph.newdream.net/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
S: Supported
F: Documentation/filesystems/ceph.txt
F: fs/ceph
CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
M: David Vrabel <david.vrabel@csr.com>
L: linux-usb@vger.kernel.org
@ -1907,17 +1936,17 @@ F: drivers/scsi/dpt*
F: drivers/scsi/dpt/
DRBD DRIVER
P: Philipp Reisner
P: Lars Ellenberg
M: drbd-dev@lists.linbit.com
L: drbd-user@lists.linbit.com
W: http://www.drbd.org
T: git git://git.drbd.org/linux-2.6-drbd.git drbd
T: git git://git.drbd.org/drbd-8.3.git
S: Supported
F: drivers/block/drbd/
F: lib/lru_cache.c
F: Documentation/blockdev/drbd/
P: Philipp Reisner
P: Lars Ellenberg
M: drbd-dev@lists.linbit.com
L: drbd-user@lists.linbit.com
W: http://www.drbd.org
T: git git://git.drbd.org/linux-2.6-drbd.git drbd
T: git git://git.drbd.org/drbd-8.3.git
S: Supported
F: drivers/block/drbd/
F: lib/lru_cache.c
F: Documentation/blockdev/drbd/
DRIVER CORE, KOBJECTS, AND SYSFS
M: Greg Kroah-Hartman <gregkh@suse.de>
@ -2130,6 +2159,7 @@ F: drivers/net/eexpress.*
ETHERNET BRIDGE
M: Stephen Hemminger <shemminger@linux-foundation.org>
L: bridge@lists.linux-foundation.org
L: netdev@vger.kernel.org
W: http://www.linux-foundation.org/en/Net:Bridge
S: Maintained
F: include/linux/netfilter_bridge/
@ -2454,12 +2484,6 @@ L: linuxppc-dev@ozlabs.org
S: Odd Fixes
F: drivers/char/hvc_*
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/char/virtio_console.c
iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
M: Peter Jones <pjones@redhat.com>
M: Konrad Rzeszutek Wilk <konrad@kernel.org>
@ -3059,6 +3083,7 @@ F: include/scsi/*iscsi*
ISDN SUBSYSTEM
M: Karsten Keil <isdn@linux-pingi.de>
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
L: netdev@vger.kernel.org
W: http://www.isdn4linux.de
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git
S: Maintained
@ -3245,6 +3270,16 @@ S: Maintained
F: include/linux/kexec.h
F: kernel/kexec.c
KEYS/KEYRINGS:
M: David Howells <dhowells@redhat.com>
L: keyrings@linux-nfs.org
S: Maintained
F: Documentation/keys.txt
F: include/linux/key.h
F: include/linux/key-type.h
F: include/keys/
F: security/keys/
KGDB
M: Jason Wessel <jason.wessel@windriver.com>
L: kgdb-bugreport@lists.sourceforge.net
@ -3494,8 +3529,8 @@ F: drivers/scsi/sym53c8xx_2/
LTP (Linux Test Project)
M: Rishikesh K Rajak <risrajak@linux.vnet.ibm.com>
M: Garrett Cooper <yanegomi@gmail.com>
M: Mike Frysinger <vapier@gentoo.org>
M: Subrata Modak <subrata@linux.vnet.ibm.com>
M: Mike Frysinger <vapier@gentoo.org>
M: Subrata Modak <subrata@linux.vnet.ibm.com>
L: ltp-list@lists.sourceforge.net (subscribers-only)
W: http://ltp.sourceforge.net/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
@ -4312,6 +4347,7 @@ PERFORMANCE EVENTS SUBSYSTEM
M: Peter Zijlstra <a.p.zijlstra@chello.nl>
M: Paul Mackerras <paulus@samba.org>
M: Ingo Molnar <mingo@elte.hu>
M: Arnaldo Carvalho de Melo <acme@redhat.com>
S: Supported
F: kernel/perf_event.c
F: include/linux/perf_event.h
@ -4751,12 +4787,11 @@ F: drivers/s390/crypto/
S390 ZFCP DRIVER
M: Christof Schmitt <christof.schmitt@de.ibm.com>
M: Martin Peschke <mp3@de.ibm.com>
M: Swen Schillig <swen@vnet.ibm.com>
M: linux390@de.ibm.com
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
F: Documentation/s390/zfcpdump.txt
F: drivers/s390/scsi/zfcp_*
S390 IUCV NETWORK LAYER
@ -5198,6 +5233,21 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
S: Maintained
F: arch/sparc/
SPARC SERIAL DRIVERS
M: "David S. Miller" <davem@davemloft.net>
L: sparclinux@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
S: Maintained
F: drivers/serial/suncore.c
F: drivers/serial/suncore.h
F: drivers/serial/sunhv.c
F: drivers/serial/sunsab.c
F: drivers/serial/sunsab.h
F: drivers/serial/sunsu.c
F: drivers/serial/sunzilog.c
F: drivers/serial/sunzilog.h
SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
M: Roger Wolff <R.E.Wolff@BitWizard.nl>
S: Supported
@ -5383,7 +5433,6 @@ S: Maintained
F: sound/soc/codecs/twl4030*
TIPC NETWORK LAYER
M: Per Liden <per.liden@ericsson.com>
M: Jon Maloy <jon.maloy@ericsson.com>
M: Allan Stephens <allan.stephens@windriver.com>
L: tipc-discussion@lists.sourceforge.net
@ -5921,6 +5970,13 @@ S: Maintained
F: Documentation/filesystems/vfat.txt
F: fs/fat/
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/char/virtio_console.c
F: include/linux/virtio_console.h
VIRTIO HOST (VHOST)
M: "Michael S. Tsirkin" <mst@redhat.com>
L: kvm@vger.kernel.org
@ -6161,7 +6217,7 @@ F: arch/x86/
X86 PLATFORM DRIVERS
M: Matthew Garrett <mjg@redhat.com>
L: platform-driver-x86@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.git
S: Maintained
F: drivers/platform/x86

View File

@ -1,8 +1,8 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 34
EXTRAVERSION = -rc1
NAME = Man-Eating Seals of Antiquity
EXTRAVERSION = -rc5
NAME = Sheep on Meth
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

View File

@ -8,6 +8,7 @@
* based significantly on the arch/alpha/boot/main.c of Linus Torvalds
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <generated/utsrelease.h>
#include <linux/mm.h>

View File

@ -10,6 +10,7 @@
* and the decompression code from MILO.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <generated/utsrelease.h>
#include <linux/mm.h>

View File

@ -6,6 +6,7 @@
* This file is the bootloader for the Linux/AXP kernel
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <generated/utsrelease.h>
#include <linux/mm.h>

View File

@ -19,6 +19,7 @@
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <asm/uaccess.h>

View File

@ -12,7 +12,6 @@
#define __ALPHA_MARVEL__H__
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <asm/compiler.h>

View File

@ -6,7 +6,6 @@
#define MCPCIA_ONE_HAE_WINDOW 1
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/compiler.h>
/*

View File

@ -2,7 +2,6 @@
#define __ALPHA_TITAN__H__
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/compiler.h>
/*

View File

@ -2,7 +2,6 @@
#define __ALPHA_TSUNAMI__H__
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/compiler.h>
/*

View File

@ -18,7 +18,6 @@
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/init.h>
#include <linux/irq.h>

View File

@ -20,7 +20,6 @@
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/utsname.h>
#include <linux/time.h>
@ -37,6 +36,7 @@
#include <linux/uio.h>
#include <linux/vfs.h>
#include <linux/rcupdate.h>
#include <linux/slab.h>
#include <asm/fpu.h>
#include <asm/io.h>

View File

@ -7,6 +7,7 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/gfp.h>
#include <linux/capability.h>
#include <linux/mm.h>
#include <linux/errno.h>

View File

@ -10,6 +10,7 @@
*/
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/pci.h>
static int hose_mmap_page_range(struct pci_controller *hose,

View File

@ -5,7 +5,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#include <linux/bootmem.h>
#include <linux/scatterlist.h>
#include <linux/log2.h>

View File

@ -17,7 +17,6 @@
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/time.h>
#include <linux/major.h>
@ -28,6 +27,7 @@
#include <linux/reboot.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/slab.h>
#include <asm/reg.h>
#include <asm/uaccess.h>

View File

@ -11,7 +11,6 @@
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/user.h>
#include <linux/slab.h>
#include <linux/security.h>
#include <linux/signal.h>

View File

@ -3,7 +3,6 @@
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/delay.h>

View File

@ -4,7 +4,6 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/delay.h>

View File

@ -30,6 +30,7 @@
*/
#include <linux/kernel.h>
#include <linux/gfp.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>

View File

@ -224,7 +224,7 @@ static void
dp264_device_interrupt(unsigned long vector)
{
#if 1
printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n");
printk("dp264_device_interrupt: NOT IMPLEMENTED YET!!\n");
#else
unsigned long pld;
unsigned int i;

View File

@ -171,7 +171,7 @@ titan_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
static void
titan_device_interrupt(unsigned long vector)
{
printk("titan_device_interrupt: NOT IMPLEMENTED YET!! \n");
printk("titan_device_interrupt: NOT IMPLEMENTED YET!!\n");
}
static void

View File

@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kallsyms.h>
#include <linux/ratelimit.h>
#include <asm/gentrap.h>
#include <asm/uaccess.h>
@ -771,8 +772,7 @@ asmlinkage void
do_entUnaUser(void __user * va, unsigned long opcode,
unsigned long reg, struct pt_regs *regs)
{
static int cnt = 0;
static unsigned long last_time;
static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
unsigned long tmp1, tmp2, tmp3, tmp4;
unsigned long fake_reg, *reg_addr = &fake_reg;
@ -783,15 +783,11 @@ do_entUnaUser(void __user * va, unsigned long opcode,
with the unaliged access. */
if (!test_thread_flag (TIF_UAC_NOPRINT)) {
if (cnt >= 5 && time_after(jiffies, last_time + 5 * HZ)) {
cnt = 0;
}
if (++cnt < 5) {
if (__ratelimit(&ratelimit)) {
printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
current->comm, task_pid_nr(current),
regs->pc - 4, va, opcode, reg);
}
last_time = jiffies;
}
if (test_thread_flag (TIF_UAC_SIGBUS))
goto give_sigbus;

View File

@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/bootmem.h> /* max_low_pfn */
#include <linux/vmalloc.h>
#include <linux/gfp.h>
#include <asm/system.h>
#include <asm/uaccess.h>

View File

@ -218,6 +218,10 @@ config MMU
Select if you want MMU-based virtualised addressing space
support by paged memory management. If unsure, say 'Y'.
#
# The "ARM system type" choice list is ordered alphabetically by option
# text. Please add new entries in the option alphabetic order.
#
choice
prompt "ARM system type"
default ARCH_VERSATILE
@ -274,6 +278,18 @@ config ARCH_AT91
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
config ARCH_BCMRING
bool "Broadcom BCMRING"
depends on MMU
select CPU_V6
select ARM_AMBA
select COMMON_CLKDEV
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
help
Support for Broadcom's BCMRing platform.
config ARCH_CLPS711X
bool "Cirrus Logic CLPS711x/EP721x-based"
select CPU_ARM720T
@ -359,20 +375,6 @@ config ARCH_H720X
help
This enables support for systems based on the Hynix HMS720x
config ARCH_NOMADIK
bool "STMicroelectronics Nomadik"
select ARM_AMBA
select ARM_VIC
select CPU_ARM926T
select HAVE_CLK
select COMMON_CLKDEV
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select ARCH_REQUIRE_GPIOLIB
help
Support for the Nomadik platform by ST-Ericsson
config ARCH_IOP13XX
bool "IOP13xx-based"
depends on MMU
@ -747,6 +749,30 @@ config ARCH_U300
help
Support for ST-Ericsson U300 series mobile platforms.
config ARCH_U8500
bool "ST-Ericsson U8500 Series"
select CPU_V7
select ARM_AMBA
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select COMMON_CLKDEV
help
Support for ST-Ericsson's Ux500 architecture
config ARCH_NOMADIK
bool "STMicroelectronics Nomadik"
select ARM_AMBA
select ARM_VIC
select CPU_ARM926T
select HAVE_CLK
select COMMON_CLKDEV
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select ARCH_REQUIRE_GPIOLIB
help
Support for the Nomadik platform by ST-Ericsson
config ARCH_DAVINCI
bool "TI DaVinci"
select CPU_ARM926T
@ -775,30 +801,13 @@ config ARCH_OMAP
help
Support for TI's OMAP platform (OMAP1 and OMAP2).
config ARCH_BCMRING
bool "Broadcom BCMRING"
depends on MMU
select CPU_V6
select ARM_AMBA
select COMMON_CLKDEV
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
help
Support for Broadcom's BCMRing platform.
config ARCH_U8500
bool "ST-Ericsson U8500 Series"
select CPU_V7
select ARM_AMBA
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select COMMON_CLKDEV
help
Support for ST-Ericsson's Ux500 architecture
endchoice
#
# This is sorted alphabetically by mach-* pathname. However, plat-*
# Kconfigs may be included either alphabetically (according to the
# plat- suffix) or along side the corresponding mach-* source.
#
source "arch/arm/mach-aaec2000/Kconfig"
source "arch/arm/mach-at91/Kconfig"

View File

@ -11,6 +11,7 @@ extern unsigned long free_mem_end_ptr;
extern void error(char *);
#define STATIC static
#define STATIC_RW_DATA /* non-static please */
#define ARCH_HAS_DECOMP_WDOG

View File

@ -172,7 +172,7 @@ not_angel:
adr r0, LC0
ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp})
THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} )
THUMB( ldr sp, [r0, #28] )
THUMB( ldr sp, [r0, #32] )
subs r0, r0, r1 @ calculate the delta offset
@ if delta is zero, we are
@ -742,7 +742,7 @@ proc_types:
.word 0x000f0000
W(b) __armv4_mmu_cache_on
W(b) __armv4_mmu_cache_off
W(b) __armv4_mmu_cache_flush
W(b) __armv5tej_mmu_cache_flush
.word 0x0007b000 @ ARMv6
.word 0x000ff000

View File

@ -33,6 +33,7 @@ unsigned int __machine_arch_type;
#else
static void putstr(const char *ptr);
extern void error(char *x);
#include <mach/uncompress.h>

View File

@ -18,6 +18,7 @@
#include <linux/string.h>
#include <linux/mutex.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <asm/clkdev.h>
#include <mach/clkdev.h>

View File

@ -21,7 +21,6 @@
#include <linux/ptrace.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/irq.h>

View File

@ -290,7 +290,7 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */
locomo_writel(0x00, lchip->base + LOCOMO_GPO);
save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */
locomo_writel(0x40, lchip->base + LOCOMO_SPICT);
locomo_writel(0x40, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */
locomo_writel(0x00, lchip->base + LOCOMO_GPE);
save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */
@ -418,7 +418,7 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
/* Longtime timer */
locomo_writel(0, lchip->base + LOCOMO_LTINT);
/* SPI */
locomo_writel(0, lchip->base + LOCOMO_SPIIE);
locomo_writel(0, lchip->base + LOCOMO_SPI + LOCOMO_SPIIE);
locomo_writel(6 + 8 + 320 + 30 - 10, lchip->base + LOCOMO_ASD);
r = locomo_readl(lchip->base + LOCOMO_ASD);
@ -707,7 +707,7 @@ void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int
udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
printk(KERN_WARNING "locomo: m62332_senddata Error 1\n");
return;
goto out;
}
/* Send Sub address (LSB is channel select) */
@ -735,7 +735,7 @@ void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int
udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
printk(KERN_WARNING "locomo: m62332_senddata Error 2\n");
return;
goto out;
}
/* Send DAC data */
@ -760,9 +760,9 @@ void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int
udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
printk(KERN_WARNING "locomo: m62332_senddata Error 3\n");
return;
}
out:
/* stop */
r = locomo_readl(mapbase + LOCOMO_DAC);
r &= ~(LOCOMO_DAC_SCLOEB);

View File

@ -358,7 +358,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -308,6 +308,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND_UP_POSSIBLE=y
CONFIG_SUSPEND=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
#
# Networking

View File

@ -191,6 +191,7 @@ CONFIG_ARCH_OMAP=y
#
CONFIG_ARCH_OMAP_OTG=y
# CONFIG_ARCH_OMAP1 is not set
CONFIG_ARCH_OMAP2PLUS=y
CONFIG_ARCH_OMAP2=y
# CONFIG_ARCH_OMAP3 is not set
# CONFIG_ARCH_OMAP4 is not set
@ -198,8 +199,6 @@ CONFIG_ARCH_OMAP2=y
#
# OMAP Feature Selections
#
# CONFIG_OMAP_DEBUG_POWERDOMAIN is not set
# CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set
CONFIG_OMAP_RESET_CLOCKS=y
# CONFIG_OMAP_MUX is not set
# CONFIG_OMAP_MCBSP is not set
@ -208,15 +207,13 @@ CONFIG_OMAP_MBOX_FWK=y
CONFIG_OMAP_32K_TIMER=y
CONFIG_OMAP_32K_TIMER_HZ=128
CONFIG_OMAP_DM_TIMER=y
# CONFIG_OMAP_LL_DEBUG_UART1 is not set
# CONFIG_OMAP_LL_DEBUG_UART2 is not set
CONFIG_OMAP_LL_DEBUG_UART3=y
# CONFIG_OMAP_PM_NONE is not set
CONFIG_OMAP_PM_NOOP=y
# CONFIG_MACH_OMAP_GENERIC is not set
#
# OMAP Core Type
#
CONFIG_ARCH_OMAP24XX=y
CONFIG_ARCH_OMAP2420=y
# CONFIG_ARCH_OMAP2430 is not set
@ -227,6 +224,9 @@ CONFIG_MACH_OMAP2_TUSB6010=y
# CONFIG_MACH_OMAP_H4 is not set
# CONFIG_MACH_OMAP_APOLLON is not set
# CONFIG_MACH_OMAP_2430SDP is not set
CONFIG_MACH_NOKIA_N800=y
CONFIG_MACH_NOKIA_N810=y
CONFIG_MACH_NOKIA_N810_WIMAX=y
CONFIG_MACH_NOKIA_N8X0=y
#
@ -303,7 +303,7 @@ CONFIG_ALIGNMENT_TRAP=y
CONFIG_ZBOOT_ROM_TEXT=0x10C08000
CONFIG_ZBOOT_ROM_BSS=0x10200000
# CONFIG_ZBOOT_ROM is not set
CONFIG_CMDLINE="root=1f03 rootfstype=jffs2 console=ttyS2,115200n8"
CONFIG_CMDLINE="root=/dev/mmcblk0p2 console=ttyS2,115200n8 debug earlyprintk rootwait"
# CONFIG_XIP_KERNEL is not set
# CONFIG_KEXEC is not set
@ -337,7 +337,14 @@ CONFIG_HAVE_AOUT=y
#
# Power management options
#
# CONFIG_PM is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM_OPS=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y
@ -617,7 +624,55 @@ CONFIG_UNIX98_PTYS=y
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_HELPER_AUTO is not set
# CONFIG_I2C_SMBUS is not set
#
# I2C Algorithms
#
# CONFIG_I2C_ALGOBIT is not set
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set
#
# I2C Hardware Bus support
#
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_OMAP=y
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set
#
# Miscellaneous I2C Chip support
#
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
@ -673,15 +728,44 @@ CONFIG_SSB_POSSIBLE=y
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_TPS65010 is not set
CONFIG_MENELAUS=y
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_MC13783 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_AB4500_CORE is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_DUMMY is not set
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_BQ24022 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_MEDIA_SUPPORT is not set
#
@ -718,7 +802,10 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_SUSPEND=y
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set
@ -737,9 +824,10 @@ CONFIG_USB_DEVICE_CLASS=y
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_TUSB6010=y
# CONFIG_USB_MUSB_HOST is not set
CONFIG_USB_MUSB_PERIPHERAL=y
# CONFIG_USB_MUSB_OTG is not set
# CONFIG_USB_MUSB_PERIPHERAL is not set
CONFIG_USB_MUSB_OTG=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
# CONFIG_USB_INVENTRA_DMA is not set
# CONFIG_USB_TI_CPPI_DMA is not set
@ -824,44 +912,77 @@ CONFIG_USB_GADGET_DUALSPEED=y
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
CONFIG_USB_ETH=y
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_USB_ETH_RNDIS=y
CONFIG_USB_ETH_EEM=y
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_MULTI is not set
#
# OTG and related infrastructure
#
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_ISP1301_OMAP is not set
# CONFIG_USB_ULPI is not set
CONFIG_NOP_USB_XCEIV=y
# CONFIG_MMC is not set
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
CONFIG_MMC_OMAP=y
# CONFIG_MMC_SPI is not set
# CONFIG_MEMSTICK is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_RTC_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_REGULATOR is not set
# CONFIG_UIO is not set
#
# TI VLYNQ
#
# CONFIG_STAGING is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
@ -886,8 +1007,11 @@ CONFIG_INOTIFY_USER=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#

View File

@ -324,6 +324,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -450,7 +450,7 @@ CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -340,6 +340,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -368,7 +368,7 @@ CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -363,6 +363,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -361,7 +361,7 @@ CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -331,6 +331,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
#

View File

@ -343,6 +343,7 @@ CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -361,7 +361,7 @@ CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
# CONFIG_PM_RUNTIME is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -322,6 +322,7 @@ CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_RUNTIME=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y

View File

@ -15,6 +15,7 @@
#include <asm/glue.h>
#include <asm/shmparam.h>
#include <asm/cachetype.h>
#include <asm/outercache.h>
#define CACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT)
@ -219,12 +220,6 @@ struct cpu_cache_fns {
void (*dma_flush_range)(const void *, const void *);
};
struct outer_cache_fns {
void (*inv_range)(unsigned long, unsigned long);
void (*clean_range)(unsigned long, unsigned long);
void (*flush_range)(unsigned long, unsigned long);
};
/*
* Select the calling method
*/
@ -281,37 +276,6 @@ extern void dmac_flush_range(const void *, const void *);
#endif
#ifdef CONFIG_OUTER_CACHE
extern struct outer_cache_fns outer_cache;
static inline void outer_inv_range(unsigned long start, unsigned long end)
{
if (outer_cache.inv_range)
outer_cache.inv_range(start, end);
}
static inline void outer_clean_range(unsigned long start, unsigned long end)
{
if (outer_cache.clean_range)
outer_cache.clean_range(start, end);
}
static inline void outer_flush_range(unsigned long start, unsigned long end)
{
if (outer_cache.flush_range)
outer_cache.flush_range(start, end);
}
#else
static inline void outer_inv_range(unsigned long start, unsigned long end)
{ }
static inline void outer_clean_range(unsigned long start, unsigned long end)
{ }
static inline void outer_flush_range(unsigned long start, unsigned long end)
{ }
#endif
/*
* Copy user data from/to a page which is mapped into a different
* processes address space. Really, we want to allow our "user

View File

@ -13,6 +13,7 @@
#define __ASM_CLKDEV_H
struct clk;
struct device;
struct clk_lookup {
struct list_head node;

View File

@ -98,6 +98,7 @@ extern int elf_check_arch(const struct elf32_hdr *);
extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
struct task_struct;
int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
#define ELF_CORE_COPY_TASK_REGS dump_task_regs

View File

@ -11,7 +11,11 @@
#define kmap_prot PAGE_KERNEL
#define flush_cache_kmaps() flush_cache_all()
#define flush_cache_kmaps() \
do { \
if (cache_is_vivt()) \
flush_cache_all(); \
} while (0)
extern pte_t *pkmap_page_table;
@ -21,11 +25,20 @@ extern void *kmap_high(struct page *page);
extern void *kmap_high_get(struct page *page);
extern void kunmap_high(struct page *page);
extern void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte);
extern void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte);
/*
* The following functions are already defined by <linux/highmem.h>
* when CONFIG_HIGHMEM is not set.
*/
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page, enum km_type type);
extern void kunmap_atomic(void *kvaddr, enum km_type type);
extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
#endif

View File

@ -17,6 +17,7 @@
#ifndef __ASSEMBLY__
struct irqaction;
struct pt_regs;
extern void migrate_irqs(void);
extern void asm_do_IRQ(unsigned int, struct pt_regs *);

View File

@ -18,6 +18,7 @@ enum km_type {
KM_IRQ1,
KM_SOFTIRQ0,
KM_SOFTIRQ1,
KM_L1_CACHE,
KM_L2_CACHE,
KM_TYPE_NR
};

View File

@ -0,0 +1,75 @@
/*
* arch/arm/include/asm/outercache.h
*
* Copyright (C) 2010 ARM Ltd.
* Written by Catalin Marinas <catalin.marinas@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ASM_OUTERCACHE_H
#define __ASM_OUTERCACHE_H
struct outer_cache_fns {
void (*inv_range)(unsigned long, unsigned long);
void (*clean_range)(unsigned long, unsigned long);
void (*flush_range)(unsigned long, unsigned long);
#ifdef CONFIG_OUTER_CACHE_SYNC
void (*sync)(void);
#endif
};
#ifdef CONFIG_OUTER_CACHE
extern struct outer_cache_fns outer_cache;
static inline void outer_inv_range(unsigned long start, unsigned long end)
{
if (outer_cache.inv_range)
outer_cache.inv_range(start, end);
}
static inline void outer_clean_range(unsigned long start, unsigned long end)
{
if (outer_cache.clean_range)
outer_cache.clean_range(start, end);
}
static inline void outer_flush_range(unsigned long start, unsigned long end)
{
if (outer_cache.flush_range)
outer_cache.flush_range(start, end);
}
#else
static inline void outer_inv_range(unsigned long start, unsigned long end)
{ }
static inline void outer_clean_range(unsigned long start, unsigned long end)
{ }
static inline void outer_flush_range(unsigned long start, unsigned long end)
{ }
#endif
#ifdef CONFIG_OUTER_CACHE_SYNC
static inline void outer_sync(void)
{
if (outer_cache.sync)
outer_cache.sync();
}
#else
static inline void outer_sync(void)
{ }
#endif
#endif /* __ASM_OUTERCACHE_H */

View File

@ -67,6 +67,7 @@ static inline int pte_file(pte_t pte) { return 0; }
*/
#define pgprot_noncached(prot) __pgprot(0)
#define pgprot_writecombine(prot) __pgprot(0)
#define pgprot_dmacoherent(prot) __pgprot(0)
/*

View File

@ -60,6 +60,8 @@
#include <linux/linkage.h>
#include <linux/irqflags.h>
#include <asm/outercache.h>
#define __exception __attribute__((section(".exception.text")))
struct thread_info;
@ -137,10 +139,12 @@ extern unsigned int user_debug;
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#endif
#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
#define mb() dmb()
#ifdef CONFIG_ARCH_HAS_BARRIERS
#include <mach/barriers.h>
#elif __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
#define mb() do { dsb(); outer_sync(); } while (0)
#define rmb() dmb()
#define wmb() dmb()
#define wmb() mb()
#else
#define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
#define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
@ -152,9 +156,9 @@ extern unsigned int user_debug;
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#else
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_mb() dmb()
#define smp_rmb() dmb()
#define smp_wmb() dmb()
#endif
#define read_barrier_depends() do { } while(0)

View File

@ -59,23 +59,22 @@ struct iwmmxt_sigframe {
#endif /* CONFIG_IWMMXT */
#ifdef CONFIG_VFP
#if __LINUX_ARM_ARCH__ < 6
/* For ARM pre-v6, we use fstmiax and fldmiax. This adds one extra
* word after the registers, and a word of padding at the end for
* alignment. */
#define VFP_MAGIC 0x56465001
#define VFP_STORAGE_SIZE 152
#else
#define VFP_MAGIC 0x56465002
#define VFP_STORAGE_SIZE 144
#endif
struct vfp_sigframe
{
unsigned long magic;
unsigned long size;
union vfp_state storage;
};
struct user_vfp ufp;
struct user_vfp_exc ufp_exc;
} __attribute__((__aligned__(8)));
/*
* 8 byte for magic and size, 264 byte for ufp, 12 bytes for ufp_exc,
* 4 bytes padding.
*/
#define VFP_STORAGE_SIZE sizeof(struct vfp_sigframe)
#endif /* CONFIG_VFP */
/*
@ -91,7 +90,7 @@ struct aux_sigframe {
#ifdef CONFIG_IWMMXT
struct iwmmxt_sigframe iwmmxt;
#endif
#if 0 && defined CONFIG_VFP /* Not yet saved. */
#ifdef CONFIG_VFP
struct vfp_sigframe vfp;
#endif
/* Something that isn't a valid magic number for any coprocessor. */

View File

@ -83,11 +83,21 @@ struct user{
/*
* User specific VFP registers. If only VFPv2 is present, registers 16 to 31
* are ignored by the ptrace system call.
* are ignored by the ptrace system call and the signal handler.
*/
struct user_vfp {
unsigned long long fpregs[32];
unsigned long fpscr;
};
/*
* VFP exception registers exposed to user space during signal delivery.
* Fields not relavant to the current VFP architecture are ignored.
*/
struct user_vfp_exc {
unsigned long fpexc;
unsigned long fpinst;
unsigned long fpinst2;
};
#endif /* _ARM_USER_H */

View File

@ -102,6 +102,8 @@
.else
ldmdb sp, {r0 - lr}^ @ get calling r0 - lr
.endif
mov r0, r0 @ ARMv5T and earlier require a nop
@ after ldm {}^
add sp, sp, #S_FRAME_SIZE - S_PC
movs pc, lr @ return & move spsr_svc into cpsr
.endm

View File

@ -27,7 +27,6 @@
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/smp.h>
#include <linux/init.h>

View File

@ -9,6 +9,7 @@
* Authors: George Davis <davis_g@mvista.com>
* Deepak Saxena <dsaxena@plexity.net>
*/
#include <linux/irq.h>
#include <linux/kgdb.h>
#include <asm/traps.h>
@ -158,6 +159,18 @@ static struct undef_hook kgdb_compiled_brkpt_hook = {
.fn = kgdb_compiled_brk_fn
};
static void kgdb_call_nmi_hook(void *ignored)
{
kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
}
void kgdb_roundup_cpus(unsigned long flags)
{
local_irq_enable();
smp_call_function(kgdb_call_nmi_hook, NULL, 0);
local_irq_disable();
}
/**
* kgdb_arch_init - Perform any architecture specific initalization.
*

View File

@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
#include <linux/stringify.h>
#include <asm/traps.h>
@ -393,6 +394,14 @@ void __kprobes jprobe_return(void)
/*
* Setup an empty pt_regs. Fill SP and PC fields as
* they're needed by longjmp_break_handler.
*
* We allocate some slack between the original SP and start of
* our fabricated regs. To be precise we want to have worst case
* covered which is STMFD with all 16 regs so we allocate 2 *
* sizeof(struct_pt_regs)).
*
* This is to prevent any simulated instruction from writing
* over the regs when they are accessing the stack.
*/
"sub sp, %0, %1 \n\t"
"ldr r0, ="__stringify(JPROBE_MAGIC_ADDR)"\n\t"
@ -410,7 +419,7 @@ void __kprobes jprobe_return(void)
"ldmia sp, {r0 - pc} \n\t"
:
: "r" (kcb->jprobe_saved_regs.ARM_sp),
"I" (sizeof(struct pt_regs)),
"I" (sizeof(struct pt_regs) * 2),
"J" (offsetof(struct pt_regs, ARM_sp)),
"J" (offsetof(struct pt_regs, ARM_pc)),
"J" (offsetof(struct pt_regs, ARM_cpsr))

View File

@ -16,9 +16,9 @@
#include <linux/mm.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/gfp.h>
#include <asm/pgtable.h>
#include <asm/sections.h>

View File

@ -332,7 +332,8 @@ armpmu_reserve_hardware(void)
for (i = 0; i < pmu_irqs->num_irqs; ++i) {
err = request_irq(pmu_irqs->irqs[i], armpmu->handle_irq,
IRQF_DISABLED, "armpmu", NULL);
IRQF_DISABLED | IRQF_NOBALANCING,
"armpmu", NULL);
if (err) {
pr_warning("unable to request IRQ%d for ARM "
"perf counters\n", pmu_irqs->irqs[i]);
@ -965,7 +966,7 @@ armv6pmu_handle_irq(int irq_num,
*/
armv6_pmcr_write(pmcr);
data.addr = 0;
perf_sample_data_init(&data, 0);
cpuc = &__get_cpu_var(cpu_hw_events);
for (idx = 0; idx <= armpmu->num_events; ++idx) {
@ -1624,7 +1625,7 @@ enum armv7_counters {
/*
* EVTSEL: Event selection reg
*/
#define ARMV7_EVTSEL_MASK 0x7f /* Mask for writable bits */
#define ARMV7_EVTSEL_MASK 0xff /* Mask for writable bits */
/*
* SELECT: Counter selection reg
@ -1945,7 +1946,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
*/
regs = get_irq_regs();
data.addr = 0;
perf_sample_data_init(&data, 0);
cpuc = &__get_cpu_var(cpu_hw_events);
for (idx = 0; idx <= armpmu->num_events; ++idx) {

View File

@ -16,7 +16,6 @@
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/delay.h>
#include <linux/reboot.h>

View File

@ -18,6 +18,7 @@
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
#include <asm/unistd.h>
#include <asm/vfp.h>
#include "ptrace.h"
#include "signal.h"
@ -175,6 +176,90 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
#endif
#ifdef CONFIG_VFP
static int preserve_vfp_context(struct vfp_sigframe __user *frame)
{
struct thread_info *thread = current_thread_info();
struct vfp_hard_struct *h = &thread->vfpstate.hard;
const unsigned long magic = VFP_MAGIC;
const unsigned long size = VFP_STORAGE_SIZE;
int err = 0;
vfp_sync_hwstate(thread);
__put_user_error(magic, &frame->magic, err);
__put_user_error(size, &frame->size, err);
/*
* Copy the floating point registers. There can be unused
* registers see asm/hwcap.h for details.
*/
err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
sizeof(h->fpregs));
/*
* Copy the status and control register.
*/
__put_user_error(h->fpscr, &frame->ufp.fpscr, err);
/*
* Copy the exception registers.
*/
__put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err);
__put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
__put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
return err ? -EFAULT : 0;
}
static int restore_vfp_context(struct vfp_sigframe __user *frame)
{
struct thread_info *thread = current_thread_info();
struct vfp_hard_struct *h = &thread->vfpstate.hard;
unsigned long magic;
unsigned long size;
unsigned long fpexc;
int err = 0;
__get_user_error(magic, &frame->magic, err);
__get_user_error(size, &frame->size, err);
if (err)
return -EFAULT;
if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
return -EINVAL;
/*
* Copy the floating point registers. There can be unused
* registers see asm/hwcap.h for details.
*/
err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
sizeof(h->fpregs));
/*
* Copy the status and control register.
*/
__get_user_error(h->fpscr, &frame->ufp.fpscr, err);
/*
* Sanitise and restore the exception registers.
*/
__get_user_error(fpexc, &frame->ufp_exc.fpexc, err);
/* Ensure the VFP is enabled. */
fpexc |= FPEXC_EN;
/* Ensure FPINST2 is invalid and the exception flag is cleared. */
fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
h->fpexc = fpexc;
__get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
__get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
if (!err)
vfp_flush_hwstate(thread);
return err ? -EFAULT : 0;
}
#endif
/*
* Do a signal return; undo the signal stack. These are aligned to 64-bit.
*/
@ -233,8 +318,8 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
err |= restore_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP
// if (err == 0)
// err |= vfp_restore_state(&sf->aux.vfp);
if (err == 0)
err |= restore_vfp_context(&aux->vfp);
#endif
return err;
@ -348,8 +433,8 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
err |= preserve_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP
// if (err == 0)
// err |= vfp_save_state(&sf->aux.vfp);
if (err == 0)
err |= preserve_vfp_context(&aux->vfp);
#endif
__put_user_error(0, &aux->end_magic, err);

View File

@ -99,6 +99,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
*pmd = __pmd((PHYS_OFFSET & PGDIR_MASK) |
PMD_TYPE_SECT | PMD_SECT_AP_WRITE);
flush_pmd_entry(pmd);
outer_clean_range(__pa(pmd), __pa(pmd + 1));
/*
* We need to tell the secondary core where to find
@ -106,7 +107,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
*/
secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
secondary_data.pgdir = virt_to_phys(pgd);
wmb();
__cpuc_flush_dcache_area(&secondary_data, sizeof(secondary_data));
outer_clean_range(__pa(&secondary_data), __pa(&secondary_data + 1));
/*
* Now bring the CPU into our world.

View File

@ -15,7 +15,6 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/sem.h>
#include <linux/msg.h>
@ -27,6 +26,7 @@
#include <linux/file.h>
#include <linux/ipc.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
/* Fork a new task - this creates a new program thread.
* This is called indirectly via a small wrapper

View File

@ -74,7 +74,7 @@ ENTRY(memmove)
rsb ip, ip, #32
addne pc, pc, ip @ C is always clear here
b 7f
6: nop
6: W(nop)
W(ldr) r3, [r1, #-4]!
W(ldr) r4, [r1, #-4]!
W(ldr) r5, [r1, #-4]!
@ -85,7 +85,7 @@ ENTRY(memmove)
add pc, pc, ip
nop
nop
W(nop)
W(str) r3, [r0, #-4]!
W(str) r4, [r0, #-4]!
W(str) r5, [r0, #-4]!

View File

@ -16,6 +16,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/hardirq.h> /* for in_atomic() */
#include <linux/gfp.h>
#include <asm/current.h>
#include <asm/page.h>

View File

@ -20,6 +20,7 @@
#include <linux/timex.h>
#include <linux/signal.h>
#include <linux/clk.h>
#include <linux/gfp.h>
#include <mach/hardware.h>
#include <asm/irq.h>

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